TenNapel’s book follows an impoverished widower who gives a disappointing birthday present to his young son– a cardboard box. Making the best out of a bad situation, they turn the box into a boxer named Bill that magically comes to life, attracting the attention of a neighborhood bully with evil plans.

WedgeWorks helmer Chris Wedge (“Ice Age”) has an eye towards directing the film. A source close to the project says Maguire, who voiced the lead in WB’s “Cats & Dogs,” may have the option of voicing one of the main roles if the project moves forward.

Fox Animation and Blue Sky Studios are now in post-production on Wedge’s “Epic,” a 3D CG-animated action-adventure film due in May 2013.

“Great Gatsby” star Maguire is attached to play Bobby Fisher in the biopic “Pawn Sacrifice” and produce via his Material Pictures.

Other TenNapel projects in development include “Ghostopolis” at Disney and “Monster Zoo” at Paramount.

Maguire is repped by WME, Management 360 and Hansen Jacobson. TenNapel is repped by the Gotham Group and Nelson, Davis, Wetzstein. Wedge is repped by UTA and Nancy Newhouse-Porter of Newhouse / Porter / Hubbard. The Gotham Group is repped by CAA and George Davis and Joel Vanderkloot of Nelson, Davis, Wetzstein.